History of api_url 2 changes

In src/cli/proposal.rs, lines 13–32 on 7993d465675b26e4f5bbec0e278720f490531a3a1542e3969fbbc4ae50dd7e91. Every change that wrote or deleted one of these lines, or deleted a line from between them. Exact, because each line keeps its identity across edits; edits elsewhere in the file are not here. Also: oxy log -L 13,32:src/cli/proposal.rs.